# Disappearing Bedside Clock vs Math Alarm Clock

The clearest difference is price: Math Alarm Clock at Free against Disappearing Bedside Clock's $2.99. Math Alarm Clock also leads on rating (4.6 vs 4.3) and update cadence (every 5 weeks vs every 4 months). Disappearing Bedside Clock's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

Math Alarm Clock is free to download; Disappearing Bedside Clock costs $2.99 up front. Math Alarm Clock sells 1 one-off in-app purchase. Disappearing Bedside Clock asks for nothing beyond the download.

Math Alarm Clock holds the better App Store score, 4.6 against 4.3. That said, the two scores are not equally well evidenced: Math Alarm Clock has 1.3K ratings behind it against 92, so its average is the more settled of the two. Written reviews point the same way: 80% of Disappearing Bedside Clock's written reviews are positive against 90% of Math Alarm Clock's.

Disappearing Bedside Clock ships an update every 4 months, Math Alarm Clock every 5 weeks. The most recent releases landed on September 10, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Disappearing Bedside Clock | Math Alarm Clock |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [4.3 (92 ratings)](https://appshunter.io/ios/app/disappearing-bedside-clock/id870111622/reviews) | **[4.6 (1.3K ratings)](https://appshunter.io/ios/app/math-alarm-clock-wake-up/id1055089978/reviews)** |
| Number of ratings | 92 | **1.3K** |
| Positive reviews | 80.5% of reviews | **90.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 5 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | **#192** | — |
| Size | 1 MB | 205 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Midnight Oil Enterprises LLC](https://appshunter.io/developer/465985784) | [j labs](https://appshunter.io/developer/529000775) |

## What reviewers say

### Disappearing Bedside Clock

[App page](https://appshunter.io/ios/app/disappearing-bedside-clock/id870111622)

**Currently charting:** #192 Top Paid · Utilities (US App Store)

This bedside clock fades the display after an adjustable time, allowing for a peaceful rest. Touch, wave, or even a footstep can reveal the time. It offers optional dimming and voice activation for convenience.

**Highlights:** Disappearing clock display, Touch, wave, or vibration activation, Adjustable time fadeout, Optional brightness dimming, Voice activation with Siri, Digital or analog display, Customizable time color

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🌑 Dark and dim display
- 👆 Tap to wake functionality
- ✨ Simple and elegant design
- 💡 Customizable colors
- 🚫 No subscriptions needed

**What reviewers complain about**

- 🔋 Battery drain concerns
- 💡 Screen stays backlit
- 🐛 Settings change on own
- 🐛 Crash on update
- 🚫 No alarm function

**Reported bugs**

- Settings change on their own
- App crashes on open after 14.2 update
- Long-proximity gesture doesn't work
- Backlight trick doesn't work in iOS 13
- Screen doesn't go off

**Requested features**

- Add outside temperature
- Add alarm function
- Add snooze/off button for iOS alarm
- Option for specific hours for always-on vs. vibrate
- Add weather information


### Math Alarm Clock

[App page](https://appshunter.io/ios/app/math-alarm-clock-wake-up/id1055089978)

This app requires you to solve math problems to turn off your alarm, ensuring you're fully awake. It offers customizable backgrounds, voice commands for setting alarms and controlling the flashlight, and fun motivational voices to help you get out of bed.

**Highlights:** Solve math problems to turn off alarm, No snooze button, Customizable backgrounds, Voice commands for alarms and flashlight, Motivational wake-up voices, Weather for your location

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Super Sleeper | $7.99 | one-time |

**What reviewers like**

- 👍 Helps wake up
- 🤖 Customizable voice assistants
- 🎨 Customizable backgrounds and timers
- ⏰ Effective at getting user out of bed
- 💡 Unique concept of solving math problems to turn off alarm

**What reviewers complain about**

- 🐛 Voice recognition issues
- 🔋 Drains battery when left open overnight
- 🔇 Alarm stops when app is opened
- 🤔 Math problems too easy on highest difficulty
- 📱 Requires app to be open and unlocked for alarm to work

**Reported bugs**

- Alarm not going off sometimes
- Ads triggering alarm or causing issues
- App crashing or freezing

**Requested features**

- Allow multiple math questions to turn off alarm
- Option to set alarm without keeping app open
- Improve voice recognition accuracy
- Offer more difficult math problems
- Allow using own music as alarm sound


## Frequently asked questions

### Is Disappearing Bedside Clock free?

Disappearing Bedside Clock costs $2.99, with no in-app purchases.

### Is Math Alarm Clock free?

Math Alarm Clock is free to download, with in-app purchases available.

### Which has better reviews, Disappearing Bedside Clock or Math Alarm Clock?

Math Alarm Clock is rated higher. Disappearing Bedside Clock averages 4.3 out of 5 from 92 ratings, while Math Alarm Clock averages 4.6 from 1.3K ratings.

### Do Disappearing Bedside Clock or Math Alarm Clock have ads?

Math Alarm Clock shows ads; Disappearing Bedside Clock does not.

### Which is updated more often, Disappearing Bedside Clock or Math Alarm Clock?

Disappearing Bedside Clock ships an update every 4 months, and Math Alarm Clock every 5 weeks. Most recently, Disappearing Bedside Clock was updated on September 10, 2026 and Math Alarm Clock on September 22, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*